Commits
David Young committed ca9707f8c21
Use the "tail queue" from queue(3) for the delayed free list of shadow images.
Delete the little-used free-list length, dl_len, and just count up the list
entries when diagnostic code needs the length.
Extract the code for deferring shadow-image free into a new subroutine,
`vfd_swmr_idx_entry_defer_free()`.
Rename type `deferred_free_head_t` as `deferred_free_queue_t`.
Remove the disused H5F__LL_{REMOVE,PREPEND} macros.
Add some diagnostic code and #if 0'd assertions.
Change `qsort(ptr, n, sizeof(type), cmp)` to
`qsort(ptr, n, sizeof(*ptr), cmp)`.
Use a `continue` statement to lower a staircase in
H5F_update_vfd_swmr_metadata_file().
Add vfd_swmr_mdf_idx_entry_remove() to delete a shadow index entry and add the
image at that entry to a deferred-free list. Call it whenever a page is
evicted.
Update the comment in H5PB_remove_entry() that asks if we need to remove shadow
index entries: now we *do* remove them. Remove shadow index entries in
H5PB__evict_entry(). Also mention in the comment that the index-entry removal
performed by H5PB__evict_entry() ought to be sufficient.